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Heterogeneity, Demand for Insurance and Adverse Selection

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  • Johannes Spinnewijn
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    Abstract

    Recent empirical work finds that surprisingly little variation in the demand for insurance is explained by heterogeneity in risks. I distinguish between heterogeneity in risk preferences and risk perceptions underlying the unexplained variation. Heterogeneous risk perceptions induce a systematic difference between the revealed and actual value of insurance as a function of the insurance price. Using a sufficient statistics approach that accounts for this alternative source of heterogeneity, I find that the welfare conclusions regarding adversely selected markets are substantially different. The source of heterogeneity is also essential for the evaluation of different interventions intended to correct inefficiencies due to adverse selection like insurance subsidies and mandates, risk-adjusted pricing and information policies.

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    Bibliographic Info

    Paper provided by Centre for Economic Performance, LSE in its series CEP Discussion Papers with number dp1142.

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    Date of creation: May 2012
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    Handle: RePEc:cep:cepdps:dp1142

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    Web page: http://cep.lse.ac.uk/_new/publications/series.asp?prog=CEP

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    Keywords: Heterogeneity; adverse selection; risk perceptions; welfare and policy;

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    1. Hamermesh, Daniel S, 1985. "Expectations, Life Expectancy, and Economic Behavior," The Quarterly Journal of Economics, MIT Press, vol. 100(2), pages 389-408, May.
    2. Chiappori, Pierre-Andre & Salanie, Bernard, 1997. "Empirical contract theory: The case of insurance data," European Economic Review, Elsevier, vol. 41(3-5), pages 943-950, April.
    3. Einav, Liran & Finkelstein, Amy & Levin, Jonathan, 2009. "Beyond Testing: Empirical Models of Insurance Markets," Department of Economics, Working Paper Series qt90g407hf, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
    4. B. Douglas Bernheim & Antonio Rangel, 2008. "Beyond Revealed Preference: Choice Theoretic Foundations for Behavioral Welfare Economics," NBER Working Papers 13737, National Bureau of Economic Research, Inc.
    5. Erik Snowberg & Justin Wolfers, 2010. "Explaining the Favorite-Long Shot Bias: Is it Risk-Love or Misperceptions?," Journal of Political Economy, University of Chicago Press, vol. 118(4), pages 723-746, 08.
    6. Levon Barseghyan & Francesca Molinari & Ted O'Donoghue & Joshua C. Teitelbaum, 2012. "The Nature of Risk Preferences: Evidence from Insurance Choices," CESifo Working Paper Series 3933, CESifo Group Munich.
    7. Syngjoo Choi & Shachar Kariv & Wieland Mueller & Dan Silverman, 2011. "Who Is (More) Rational?," Vienna Economics Papers 1105, University of Vienna, Department of Economics.
    8. Looney, Adam & Kroft, Kory & Chetty, Raj, 2009. "Salience and Taxation: Theory and Evidence," Scholarly Articles 9748525, Harvard University Department of Economics.
    9. M. L. Weitzman, 1973. "Prices vs. Quantities," Working papers 106, Massachusetts Institute of Technology (MIT), Department of Economics.
    10. Michael D. Hurd, 2009. "Subjective Probabilities in Household Surveys," Annual Review of Economics, Annual Reviews, vol. 1(1), pages 543-564, 05.
    11. Hanming Fang & Michael P. Keane & Dan Silverman, 2008. "Sources of Advantageous Selection: Evidence from the Medigap Insurance Market," Journal of Political Economy, University of Chicago Press, vol. 116(2), pages 303-350, 04.
    12. M. Kate Bundorf & Jonathan D. Levin & Neale Mahoney, 2008. "Pricing and Welfare in Health Plan Choice," NBER Working Papers 14153, National Bureau of Economic Research, Inc.
    13. Alma Cohen & Peter Siegelman, 2010. "Testing for Adverse Selection in Insurance Markets," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 77(1), pages 39-84.
    14. Adrian Bruhin & Helga Fehr-Duda & Thomas Epper, 2007. "Risk and Rationality: Uncovering Heterogeneity in Probability Distortion," SOI - Working Papers 0705, Socioeconomic Institute - University of Zurich, revised Jul 2007.
    15. Pierre-André Chiappori & Bruno Jullien & Bernard Salanié & François Salanié, 2002. "Asymmetric Information in Insurance : General Testable Implications," Working Papers 2002-42, Centre de Recherche en Economie et Statistique.
    16. Rothschild, Michael & Stiglitz, Joseph E, 1976. "Equilibrium in Competitive Insurance Markets: An Essay on the Economics of Imperfect Information," The Quarterly Journal of Economics, MIT Press, vol. 90(4), pages 630-49, November.
    17. Michael D. Hurd & Kathleen McGarry, 1997. "The Predictive Validity of Subjective Probabilities of Survival," NBER Working Papers 6193, National Bureau of Economic Research, Inc.
    18. Levon Barseghyan & Jeffrey Prince & Joshua C. Teitelbaum, 2011. "Are Risk Preferences Stable across Contexts? Evidence from Insurance Data," American Economic Review, American Economic Association, vol. 101(2), pages 591-631, April.
    19. Amy Finkelstein & Kathleen McGarry, 2006. "Multiple Dimensions of Private Information: Evidence from the Long-Term Care Insurance Market," American Economic Review, American Economic Association, vol. 96(4), pages 938-958, September.
    20. B. Douglas Bernheim & Antonio Rangel, 2009. "Beyond Revealed Preference: Choice-Theoretic Foundations for Behavioral Welfare Economics-super-," The Quarterly Journal of Economics, MIT Press, vol. 124(1), pages 51-104, February.
    21. Liran Einav & Amy Finkelstein & Mark R. Cullen, 2010. "Estimating Welfare in Insurance Markets Using Variation in Prices," The Quarterly Journal of Economics, MIT Press, vol. 125(3), pages 877-921, August.
    22. Liran Einav & Amy Finkelstein & Paul Schrimpf, 2010. "Optimal Mandates and the Welfare Cost of Asymmetric Information: Evidence From the U.K. Annuity Market," Econometrica, Econometric Society, vol. 78(3), pages 1031-1092, 05.
    23. Justin Sydnor, 2010. "(Over)insuring Modest Risks," American Economic Journal: Applied Economics, American Economic Association, vol. 2(4), pages 177-99, October.
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    Cited by:
    1. Helmuth Cremer & Kerstin Roeder, 2012. "Long-Term Care Policy, Myopia and Redistribution," CESifo Working Paper Series 3843, CESifo Group Munich.
    2. Benjamin R. Handel & Jonathan T. Kolstad, 2013. "Health Insurance for “Humans”: Information Frictions, Plan Choice, and Consumer Welfare," NBER Working Papers 19373, National Bureau of Economic Research, Inc.

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